Planimeter.



F. R. WILLIAMS'. PLANIMETER.

APPLIGATION FILED mso. s1, 190e.

1,049,186. 'Patented Dec. 31, 19142.

2 SHEETS-SHEET 1.

WITMEssEs F. R. WILLIAMS.

PLANIMBTBR APPLIUATION FILED DBO.31, 1906A l Patented Deo. 31, 1912.

2 SHEETS-SHEET 2.

WIT MESSES COLUMBIA PLANDGRAPM co.. WASHINGTON. l)A e:A

CII

FRANK R. WILLIAMS, OF SYRACUSE, NEW YORK.

PLANIMETER.

Specification of Letters Patent.

Patented Dec. 31, i 912.

Application led December 31, 1906. Serial No. 350,217.

To all whom it may concern:

Be it known that I, FRANK R. VILLL-iris, a citizen of the United States, and a resident of Syracuse, New York, have invented new and useful Improvements in Planimeters,of which the following,talen in connection with the `accompanying drawings, is a full, clear, and exact description.

This invention relates to improvements in planimeters, and especially of a portable form, designed for general use upon enginel diagrams, drafting and engineering sections, architects and surveyors plans, maps et cetei'a, and various other uses.

Vith this and other objects in view this invention consists of certain novel features of construction, combination and arrangement of parts as hereinafter described.

The general arrangement and construction of my improved planimeter will be readily understood from an inspection of Figure l of the drawings.

The main operating features of this planimeter are similar to that of my Patent No. 746,427, Dec. 8, 1903. The operative parts are, however, for useful reasons, detachably mounted upon a base or table, which base may be constructed in portions arranged so that the entire instrument may be operated self contained, and also may fold and lie togetlier for convenience or for packing.

In the accompanying drawings, Fig. 1, is a plan view of my improved planimeter ready for use. Figs. 2 and 3, show a side and end view respectively. Fig. 4, is a view through the arrow line a, o, Fig. l. Fig. is a plan view as folded. Fig. G, is a plan view of the table part-s, with the operating parts removed. Figs. 7, and 7, show enlarged theI pin 79, and jaw L. Figs. S, and S, show enlarged the pin o, and ledge Figs. 9, and 9a, show enlarged the wheel w, and knurling thereon.

In the figures, the letter A, represents the main body, upon or within which is the guideway g. Projecting above is the jaw L, which is attached and secured by the pivot y?, hereinafter more particularly described. Sliding within the rectangle formed of the body A, and jaw L, is the sliding jaw S, upon which is mounted the perpendicular jaw R. The pivot p, is threaded into the body A, andv provided with a handle Z, as shown,by which means the j aw L,is clamped down. It is also provided with a cam shaped portion o, see Figs. 4C and 7, which simultaneously draws the jaw L, longitudinally against the edge of the jaw S, thus holding it firmly and in perfectly correct position. A piece of hardened steel u, may be inserted in the jaw Z, to receive the pressure and wear of the cam o. By means of the pivot F, the jaws may be loosened and released from pressure, or slightly raised, to facilitate sliding diagrams thereunder.

ln order to raise the jaws, if necessary, there is near the upper end of the body A, a hinge j, or other construction which allows that portion ofthe body J, together with the jaws to be raised, see dotted lines Fig. 4L, to facilitate placing diagrams, or for other purposes; portion J, being held down in use by a cam button d, or otherequivalent manner; said cam button preferably being on its underside of a bevel or cam form n, and bearing upon a suitably formed portion of the frame A.

Alongside of the guideway g, is a scale E, retained in position by the holding clip 7c. The clip la, is constructed of a central portion rigidly attached to the body A, a stationary tongue projecting above the scale E, and has flexible ends that bear against the scale E, to provide an accurate but yielding retention of said scale tightly alongside to the guideway g, but at all times easily adjustable or removable, and which is suitable to hold scales of both round or rectangular form, and which scales may easily be removed or inserted.

The tracing arm M, is provided at one end with a tracer point z., and handle thereof T, and at the other end with a guide pin o, moving on the guide-way g, and also carries a measuring wheel XV, and weighted sufficiently by the integral portion m, to obtain proper pressure upon the pin 0, and the wheel `W.

To restrain the pin 0, from accidentally jumping or lifting from its necessary position at the bottom of the groove, there is upon pin 0, a shoulder m, over which projects a ledge e', shown enlarged in Fig'. 8. Said ledge and shoulder may be formed integral, or may be attached as seen in Fig. 8f.

The `wheel Wl, is provided with graduations o, upon its face, and with a lmurled or otherwise rougheued ring or portion fr, upon it, to 'facilitate adhesion oit the linger when rotating` it in setting, as shown by Fig. .l. .tiaid wheel is preterably smooth upon its paper contactl edge.

rthe arm lvl, is formed in the single piece Venetian return curve forni f, and the weight portion in a lobe integral thereof, to facilitate convenience, and obtain the torni least in the way ot the sight when using', to 'Facilitate exact, adjust-nient by slight bending' oit the curves, and to ohviat-e the nuisance of having a loose separate part which must be handled at every operation.

The jilaniineter operatingparts may be detachably mounted upon the bed by screws e, c, or other suitabh` .manner to 'facilitate removal 'for tlat use, as in my previous patent. W'hen conipactness is not desired, the bed may be any table or board suitable for that purpose, or it may be permanently mounted upon a drawingl board.

.ln order to told into the smallest compaetness the bed is constructed in parts, Awith a main portion B, (herein shown as a `wooden base) to which the body A, is attached, and there is hinged or piyoted thereto as by hinge or pivot il., another portion C, (shown herein as a metal plate), which swings or folds into position suitable to support and receive the diagran'i, as in Figs. l, and (3, where it is held by a retaining' catch or pin 2', while it may swing,` or fold into position shown in Fig. 2. Also the jaw L, the jaw S R, and the arm hilf, may be placed as in that ligure.

The portion ot' the frame comprising` the bearing o'l the jaw L, is formed on an ineline i), so that when folding, the jaw will rise above the bed as shown in dotted lines Fig. Q. The body A. is raised to a level of the hinged portion C, by a strip Z), which may be separate, or formed integral with the bed B, or body A, and which also allows the portion C, to swingpartly under the body A, and thns reduce the folded dimension. The plate C, may be partly supported by leg D. The surface P, upon which the measuringv wheel TV, operates, which may be recessed below the level ot the bed B, is coyered by the plate C, when tolded, and thus protected from injury.

The operation `is well linown and does not need any specific description.

Claims.

l. The combination in a planimeter, of a main traine A., provided with projecting` jaws L, lt, the jaw R, of which is adjustable to the dimension oit the diagram; and the jaw L, non-adjustably attached to traine A; ot' a pivot p, constructed to pass through and bear upon jaw L, and thereby clamp and securely hold said jaws in accurate adjusted position, substantially as and tor the purpose described.

The combination in a planinieter ot a main traine A, provided with projecting jaws L, ll, one oi which is adjustable lo the dimension of the diagram, and the other jaw mounted upon traine A; ot a pivot j, provided with a screw thread passing through jaw L, whereby it may screw down npon L. and clamp said jaws rigidly and aceinately hold same in position, substantially as described.

Iii. The combination in a planimetcr of a main trame n., provided with projecting jaws L, R, one ot which is adjustable to theI dimension ot the diagram, and the other non-adjustably attached to the traine; ot a pivot passingl through jaw li. provided with a caro thereon whereby it may draw said 'jaws into exact posit-ion and rigid security, as set torth.

r[he (':oi'nbination in a planimeter ot a main trame provided with projecting jaws, one oit which is adjustable to the dimension ot the diag'ii'ani; ot a pivot, provided with a screw thread coopei-atingI with the body, and with a :am cooperating with the jaw, whereby said jaw may be drawn into exact position and clamped rigidly and securely, substantially as, and tor the purpose dcscribed.

5. 'rlhe comliiination in a planiinoter oit a main frame provided with separately constructed jaws L, t5, ll, ot the pivot y), so constructed as to clamp and secure said jaws when in use, and which pivot may be loosened to freely raise said jaws slightly to facilitate placing' a diagram thereunder, as described.

ln a planimeter, the bed A, provided with an incline and the jaw L, bearing and rotating` upon the incline 7), o'lE the trame for convenient folding, substantially as and tor the purpose described.

7. rl`he eonibination in a planimeter o t a main trame a supplementary portion d', jaws L, S, ll, there-attached, and a hinged connection j, between said trame and supplcmentary portion, substantially as and tor the purpose set forth.

8. The combination in a planiineter of a main traine, a` supplementary portion hinged thereto, projectiin;l jaws theresattached, and the cam button (Z, as and tor the purpose set forth.

9. The combination in a` planimeter ot a main frame, projecting jaws therenattached,

llo

Locales and a hinged connection between said frame and. jaws, and a cam button provided with a cam or bevel portion cooperating with a corresponding portion of the fra-mc, as described.

10. A planimeter having frame A, hinge j. supplementary portion J, jaws L, R, arm M, tracer t, wheel lV, and guide pin o, substantially and for the purpose set forth.

11. A planimeter having bed B, frame A, guideway y, supplementary portion J, cani button (Z, jaws L, S, R, and an arm provided with a point t, and measuring wheel lV, as set fort-h.

12. A planimeter having frame A, guideway g, a scale ld, a clip 7u constructed with lixed center and flexible ends, jaws L, R, and an arm N, carrying tracing point t, and measuring` wheel lV, substantially as shown and described.

13. In a planimeter, the combination of a frame A, and a tracing arm carrying therewith a tracing point, a measuring` wheel, and a pointer, a scale E, and clip 7c, said clip being constructed with its center rigidly aflixed to the frame, and with stationary tongue projecting above the scale, and with spring ends to provide a yielding retention of scale E, in accurate position tightly alongside to the guideway g, substantially as set forth.

14. A planimeter tracing arm M, constructed of a single piece of Venetian return curve. having a weight lobe integral, and carrying a measuring wheel, one end being provided with a tracing point, and the other end having means for positively controlling, substantially as described.

15. The combination with the operating:

parts of a planimeter, of a tracing` arm constructed of a single piece Venetian return curve, having a weight lobe integral, and carrying a measurement indicating device, being provided at one end with a tracing point, and the other end having means for positively controlling, substantially as set forth.

1G. In a planimeter, the combination with thc operating parts, of a tracing arm, a tracing point at one end, and the other having means for positively controlling, and a measuring wheel provided with gracluations upon its face and a knurled portion upon its flange side, as set forth.

1T. The combination with the operating parts of a planimeter, of a tracing arm, of a. single piece Venetian return curve, having a. weight lobe integral therewith, and carrying a` measuring wheel with a knurled portion upon its flange side, and also provided with a tracing point at one end, and the other having means for positivelj7 controlling, as set forth.

18. rlhe combination with a tracer arm, and other operating parts of a planimeter, of a measuring wheel Z, provided with graduations upon its face, and a irnurled ring 1, upon its flange side, substantially as and for the purpose set forth.

19. ln a planimeter, a base or table, diagram jaws thereupon, one of said jaws being of fixed position relative to the base, and the other adjustable so as to move toward and from the fixed jaw, and laterally beyond a side of said base, said base having a pivot 7L, and a movable extension attached thereto and swinging upon the pivot lz, and adapted to project over the side of the base to form an extension over which the adjustable jaw projects when adjusted beyond the base, as and for the purpose set forth.

20. In a planimeter, the combination of a bed A, supporting the operating parts thereof, said base having a pivot lz., and also thereupon a diagram leaf attached thereto by the pivot h, upon which said leaf swings horizontally to open working position, and to fold superimposedly upon the base, substantially as shown and described.

21. In combination with the operating parts of a planimeter, mounted thereon, a base A, of less width than the length of the diagram, said base having a pivot it, and a supplementary diagram leaf C, fiXedly pivoted thereto, swinging upon pivot 7i, and retained in operating position by the catch t', as set forth.

22. In a planimeter, a base B, said base having a pivot 7L, and a catch c, a frame A, attached thereto and carrying diagram jaws L, R, which project over the base, and a diagram leaf thereunder to support diagrams, said diagram leaf being attached to the base, and swinging upon the pivot 7i, to fold superimposedly upon the base, and retained in working position by the catch e, substantially as shown and described.

23. A planimeter having a main base, and a supplementary hinged or pivoted portion adapted when open to support a diagram, and which when folded covers and protects the friction surface upon which the measuring wheel operates, substantially as shown and described.

24. A planimeter having' a frame, a guideway thereon, diagram jaws attached, and an arm carrying the tracing` point zf, and the measuring wheel W, and the guiding pin o, said guide pin being provided with a shoulder and the guideway with a removably attached ledge o, substantially as and for the purpose shown and described.

25. A planimeter having a frame A, a guideway G, thereon, diagram jaws L, R, attached, an arm carrying the tracing point 4 momo@ t, and the measuring Wheel 'W, and the guldng pin o, Said guide pin provided with a` shoulder :md the gudeway ufo'Shod with a remomby attached lodge 2;, subs'nninlly :is SQL forth. guido pin. 0, Shoulder and ledge sub- QG. plzmmotel' having a frame, n guidetaubiolly as and for the purpose set forth. Way thereon, diagram jaws uttnohmh :1n FRANK R. VLLLVIS. arm Carrying the tracing; point Z', and tho 'Vitnesses: lexeasm'ng Wheel V, and the guiding pin B. HEBBARD, 10 tloloo'f Furnished with :1 ShoHMor, und tho i E. Q. VILLIAMS.

gudoway furnished with a ledge, substantially as doscrbed.

27. A planmetel having immo jaws L, R, gudeway 0, arm M, tracer whoel W,

Copie: of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents Washington, D. C4 

